PumpTest: fix compilation errors on buggy compilers
PumpTest: fix compilation errors on buggy compilers

sumit784/mapdb,ffjiao/mapdb,pettermahlen/mapdb,SleimanJneidi/mapdb,codeaudit/mapdb,lamfire/mapdb,binarytemple/mapdb,jankotek/MapDB,jankotek/mapdb,jankotek/MapDB,ringoluo/mapdb,hangum/mapdb,cocosli/mapdb,morfeo8marc/mapdb,jankotek/mapdb